Good, I 've get a two-pin plug.

好，我有一个两脚插头的。

youdao

I need an adaptor for a three-pin plug.

我需要一个三脚插头的转接头。

youdao

USB 5 pin plug and at the other end is a standard USB plug.

在一端是微型的USB 5针插头，在另一端是一个标准的USB插头。

youdao

Oh, what pleasure to plug in my three-pin British plug the other evening in Inner Mongolia, so very far from home.

BBC: A universal plug socket... at last?

Ibiden's pin-grid packages plug into circuit boards via dozens of tiny prongs.

FORBES: It's all in the packaging

The cape plug-in boards can be plugged into BeagleBone's two 46-pin dual-row expansion headers, providing similar headers so that up to four cape plug-in boards can be stacked at a time.

ENGADGET: BeagleBone gets plenty of expansion options with new 'cape' add-ons